package cn.lynu.lyq.java_exam.dao;import java.util.List;import cn.lynu.lyq.java_exam.entity.Exam;import cn.lynu.lyq.java_exam.entity.ExamStrategy;public interface ExamStrategyDao {	List<ExamStrategy> findAll();	List<ExamStrategy> findByExam(Exam exam);	ExamStrategy findById(int id);	void save(ExamStrategy e);	void update(ExamStrategy e);	void delete(ExamStrategy e);}